QML TreeView itemDelegate not indicating isSelected

Question

I have created a simple TreeView in QML, with several levels of nesting. I have also created an "itemDelegate" and a "rowDelegate"; both of which switch background color between red/black bound to their respective isSelected.

When I click on an item the ROW color changes, but the item does not. I confirmed the itemFlag for each item includes ItemsIsSelectable and ItemIsEnabled (default).

My itemDelegate contains:

  Rectangle {
                color: styleData.isSelected ? "red" : "black"

I added a selection to the treeview:

  ItemSelectionModel {
       id: treeViewSelectionModel
       objectName: "treeViewSelectionModel"
       model: treemodel
       onCurrentChanged:{console.log("Selection - current changed from ",previous, " to ", current)}
   }

Which correctly prints out the new/previous selection. So it appears the item is being selected, but not changing color. Can someone explain why?

From what you have posted of your Rectangle it is not possible to tell but do you set it's size / anchors? — pooya13
According to documentation you should use styleData.selected not styleData.isSelected — Maxim Skvortsov
@Maxim - that was it! Seems QML is not consistent with naming methods for styleData. — TSG

TSG TSG · Accepted Answer · 2021-04-22T19:58:39

QQC1 is not consistant, so item uses styleData.selected while row uses styleData.isSelected

(as noted by Maxim)

QML TreeView itemDelegate not indicating isSelected

1 Answers